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International Comfort Products C8DNL075F16A1 Furnace Door Switch
A furnace door switch is a switch that stops the draft inducer and ignitor from starting so as to stop a potential explosion. It is quite important to have it switched out quickly especially if you suspect it is not working properly.
Warnings of a weakening safety switch on the furnace door
- The switch seems to be broken badly
- The HVAC system will not begin whether the door is off or on
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